Tire boot



Nov. i 1924. l 513 770 D. E. swARTz TIRE BOOT Filed Oct. 2l, T922 gnou/riot '4e tiona View.

DAVID E. SWABTZ, F CHICAGO, ILLINOIS, ASSIGNOE T0 SW @Il BRO i2' M:

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,t e; comrosnn or: navin n swan'rz, FBED- a. swanrz, y.ann Jenna'. sw'ra' Application mcd October Ell, w23. Serial No. 5,039.

To all whom z't may concern.'

Be it known that I, Devin E. SwAn'rz, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Tire Boots, of which the following is a specification. ,v

My invention relates to new and useful improvements in tire boots, and more particularly to a tire boot, of .this character adapted to be employed in connection with .pneumatic tires for strengthening the tire casinat at a point where a blow-out has occurrei. The primary object of the invention is the provision of a boot 'of the kind stated,l

the outer surface of which is adapted to adhere to the inner lining of the tire casing whenin 2o tive movement between the boot and easing. Another important object of myinvention is to provide a tire boot of this kind, having a rubber reinforcing layer adjacent its outer surface to act as a wearing tread and to seal the hole in thecasin against the entry of stones or other foreign matter as the tire is run over the road. The invention also has for an object to furnish a tire boot which. will perform the function of a vulcanized section in the outer casing, and which will be strong and durable. The above and other objects are attained by means of certain novel features of construction and arrent of the various parts to be hereinafter described and claim ed, and in order that the same may be better understood, reference is had to the accompanying drawing, forming a 'part of this specification.

In the dra i.; F' 1 is a verse section through a tire boot constructed in accordance with m invention, and' 2 is a ental longitudinal sec- Referring' s icall t0 the drawing, wherein the iglfzerred yembodiimmtv of the invention is own, numeral 5 denotes the outer covering of the boot-consist" of a a0 pl. 'of extra strong fabric which is ouble ru ber frictioned at its outer surf, the rst being a standard calendered friction while the second is of crude rubber 6. which is applied lafter tm boot is met The use, thus preventing any rela.

vprevent inju 'tioned to adhere to the outer surface lof a thick layer of rubber 7 forming the tread portion of the boot and extending substantially throughout the length thereof with its side and end edges tapered very thin so as,

to conform to the inside ofthe tire casing.

The outer fabric covering 5 is extended beyond the edges of the boot to form the lateral'extensions or iiaps for insertion between the bead of the tire casing and the rim for the proper locating of the boot at the desired point in the casing.

Beneath the rubber layer 7 are three plies of standard re lation ltire fabric 9, all suitably frictione so that they will adhere to each other and to the layer of rubber 7 to form a practically solid mass of rubber and fabric. y

A lining 10 is. rovided to cover all the inner surface of the boot, it having lateral extensions 11 to reinforce the flaps 8 at their wearing points between the tire and the rim of the wheel. The upper surfaceof this lining is also rubber frictioned to adhere to the lowermost fabric ply 9 while'the inner surface is smooth and unfrictioned'to prevent 'injury to the inner tube of the tire. All plies of fabric used in the construction of the boot are cut on `a forty-five degree bias so that they will conform to the construction of the tire itself, to prevent friction between the tire and bootand to insure its adhesion to the inside of the tire casing as a part of it. As will be noted, 'the rubber ayer 7 and the fabric plies 'are all cut to a size and skived to form a perfectly fitting boot, all edges being tapered thin so 'as to to the inner tube. oregoing description, read in wing, boot From the connection with the 'accompany r the formation and advantages m will be readily a preciated. It ma plied to the insi e of a casing yin e same manner as the conventional boot now in use, the aps 8 bein allowed to stick out between the bead an the rim.'v When ythe tire is inflated and run on the road theheat generated thereby will cause the melting of the rubber 6`which resultsiu the self vul# ieu canization of. the boot to the inside of the casing. When the outer fabric ply has Worn through the portion of the rubber boot tread 7 will act as a plug for the hole in the casing to keep out stones, etc. The rubber layer 7 will be proportionately large enough to cover the surface around any blow-out hole or hohes that might occur within the radius of a forty-five degree angle assuming the apex to be at the center of the rim. No metallic stitfening means are necessary, the rubber layer serving to prevent the boot front being forced through a break in the casing when the tire is inflated.

After my tire boot has become vulcanized to the inside of the tiro casing hereinbefore described, it serves to maintain the normal contour of the portion of the casing walls it Coversa and prevents bulging or expanding thereof from the pressure of the air Within.

Particular attention is directed to Fig. l which plainly illustrates that the longitudinal edge portions of each and every lamination are attached to the cover 5 so that one lamination is prevented from slipping with relation to an adjacent lamination or with relation to any other part of the boot.

Attention is also directed to the fact that the longitudinal edge portions of the lining 10 are extended outwardly and are attached to the-flaps 8 to strengthen and reinforce the same and to `form a more or less of a seal at each side of the boot by means of which any lamination is prevented from working its way out of place.

lin accordance with the patent statutes, l

have described the preferred embodiment of my invention, but it will be understood` that ll do not propose to limit myself strictly thereto, since various changes and modifications will immediately suggest themselves to those skilled in the art within the spirit of the invention, the scope of which is set forth, in the following claims.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is:

l. A tire repair boot comprising a body having a plurality of laminations ot dinerent Widths, a tread portion of rubber attached to the outer lamination ot the body and being narrower than the same, a covering extending over the rubber tread portion and being substantiallyv Wider than the tread portion, said cover being secured to the longitudinal edge portions of all the lamina tions of said body and having its own longitudina-l edge portions extending beyond said laminations and outwardly to torni attach flaps, and a lining attached to the innermost lamination of the body and having its edge portions extended outwardly beyond the edges of said laminations and attached to said tiaps tok strengthen the same and to hold the laminations constituting said body firmly in place.

2. rlhe construction set forth in claim l, the rubber tread portion being adapted to work its way 'partly' into the tire coverto lill the opening.

In testimony whereof ll ar my si ature., 

